The HBsAg ELISA test is used to detect the presence of the Hepatitis B surface antigen in the blood. A positive result indicates an active Hepatitis B virus (HBV) infection, which may be acute or chronic.
Method Used:
ELISA (Enzyme-Linked Immunosorbent Assay) – a highly sensitive lab technique for detecting viral antigens.
Sample Required:
A blood sample
Fasting Required:
No
Interpretation:
Positive: Indicates Hepatitis B infection (active or carrier)
Negative: No Hepatitis B surface antigen detected
Recommended For:
People with liver problems, healthcare workers, pregnant women, those at high risk of infection, or before surgeries/blood donation.
To screen for Hepatitis B infection
To diagnose acute or chronic HBV
To monitor HBV carriers and assess infectious status
To screen blood donors for hepatitis B
Sample Required:
A blood sample
Fasting Required:
No
ELISA (Enzyme-Linked Immunosorbent Assay) – a highly sensitive lab technique for detecting viral antigens.
Positive: Indicates Hepatitis B infection (active or carrier)
Negative: No Hepatitis B surface antigen detected
People with liver problems, healthcare workers, pregnant women, those at high risk of infection, or before surgeries/blood donation.






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